use Northwind
SELECT     dbo.Employees.LastName, dbo.Employees.FirstName, DATEDIFF(year, dbo.Employees.BirthDate, GETUTCDATE ()) 'Age'
FROM       [Northwind].[dbo].[Employees] 
WHERE DATEDIFF(year, dbo.Employees.BirthDate, GETUTCDATE ()) > 55
ORDER BY dbo.Employees.LastName ASC